The Nuclear Matter Density Functional under the Nucleonic Hypothesis

Universe

卷:7

Chiranjib Mondal¹  Hoa Dinh Thi¹  Francesca Gulminelli¹ 

[1] Laboratoire de Physique Corpusculaire, CNRS, ENSICAEN, UMR6534, Université de Caen Normandie, CEDEX, 14050 Caen, France;

关键词: neutron stars;    gravitational waves;    equation of state;    dense matter;   

DOI  :  10.3390/universe7100373

来源: DOAJ

【 摘 要 】

A Bayesian analysis of the possible behaviors of the dense matter equation of state informed by recent LIGO-Virgo as well as NICER measurements reveals that all the present observations are compatible with a fully nucleonic hypothesis for the composition of dense matter, even in the core of the most massive pulsar PSR J0740+6620. Under the hypothesis of a nucleonic composition, we extract the most general behavior of the energy per particle of symmetric matter and density dependence of the symmetry energy, compatible with the astrophysical observations as well as our present knowledge of low-energy nuclear physics from effective field theory predictions and experimental nuclear mass data. These results can be used as a null hypothesis to be confronted with future constraints on dense matter to search for possible exotic degrees of freedom.

【 授权许可】

Unknown